Animals in Our World Archive

In the early twentieth century, medical researchers and entrepreneurs began searching for substances that could kill pathogenic microorganisms—such as bacteria, fungi, parasites, and viruses—while leaving the infected host unharmed. Paul Ehrlich, a German scientist, coined the term "magic bullet" to describe these substances. He demonstrated...

Declawing pet cats, or onychectomy, is a surgical procedure performed under general anesthesia that permanently removes a cat's claws. This procedure entails amputating the last bone in each toe and is analogous to removing the last joint of a human finger. The procedure is reported...

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